Bearing



Dec. 8, 19314.

W. MITCHELL BEARING Filed July 22 -I N VEN TOR.

MM' HL 31% Patented Dec. 8, 1931 WILLIAM MITCHELL, OF MILWAUKEE,

ENT gori-ucl:

WISCONSIN, ASSIGNOR TO MITCHELL MANU- FACTUBING COMPANY, OFMILWAUKEE, WISCONSIN, A-CORPORATION WISCONSIN y, ,B- *GV* W f Application mea July 22,

' This invention relates toimprovenients in bearings, and more particularly to bearings for the mounting of` rotative devices on stationary vertical supports4 as in playground apparatus.

Y It is one of the objects of thelinvention to provide a` bearingin which friction is mimmized and which will 'turn onits mountlng very easily whereby a rotativeframe carried by the bearing may be-turned-with very `little effort. y a

A further obj ect of the linvention is to provide a bearing which is easily assembled and f.

which can be'mounted on its support in avery simple and easy manner. A further'object f the invention is .to provide a bearing which is easy to lubricate and which will retain its lubricant whereby eX- cessive wear on and deterioration of the parts a lubricant reservoir is prevented. s

A further objectv of the invention is to provide a Vbearing in whichy the internal parts and moving surfaces are housedand enclosed to prevent rust and weather deterioration by the entrance of rain, snowand moisture;

A further obj ect of the invent-ion is to provide a bearing of the class described which is of very ksimple construction, is strongand durable, and is vwellA adapted for thepurposes described.

With the above and other objects in view the invention consists ofthe improved bearing, and its parts and combinations as set forth in the claims, and all equivalents thereof. J

In the 'accompanying drawings in which the same reference` characters indicate the same parts in all of the views:

Fig. 1 is a vertical sectional view of the improved bearingmountedon a supporting post;

Fig. 2 is a cross-sectional view taken on line 2-2 of Fig. 1;

Fig. 3 is a cross-Sectio line V3 3 of Fig. 1; andv Fig. 4 is a detail sectional view taken on line 4-4 Vof Fig. 1.

Referring now more particularly to the al view taken on drawings it will appear that the numeral 6 designates a vertical support in the vform of 1929.* serial No. 330,074.

ed within the cupped member on vthe shoulder 9 'is an annular bearing formedj'of a non-movableV lower retaining member 10 for bearing ballslll and an inner upper curved retaining nelrlnber 12 movable on and with the bearing as.'` f A'lower cupped member 13 revolubly surrounds a portion of the support yconsiderably below the upper end portion thereof and said cupped memberis supported from below by per end. Positioned immediately below the :member 14 is an annular clamping member 15 vformed atspaced intervals with slotted lug portionsv 16 which receive the squared heads of ,bolts 17, as 4. 4The shanksof said bolts extend through spaced openings therefor in an annular wedging member 18 and nuts 19 are. threaded onto the lower end portions of said bolts 17 and a tightening of saidnutswill `cause the upper" edge of an innerannular fiange 18 ofthe member v18 to wedgingly engage' a rubber ring 20 interposed between an inner inclined wall 14 of the member -14 and the support 6, with the resultthat there is a `clamping engagement between the members 18, 14 and 6, with the upper edge ofthe wall114vengaging the lower surface of the lower cupped member 13. i

The lower 'cupped member 13 is formed intermediate its upper and'lower edges with l an annular flange 21 to which are secured at spaced intervals the inner end portions of angle iron, radially extending arms 22 which form part of a rotative frame carried by thefimproved bearing.

There is positioned within the lower portion of the lower cupped member 13, surrounding the support 6,"a flat sheet metal ring 23 andr the lower studs 24` of vertically dis` 100 14, having an open up-' shown inFigs. 1 andf Y so . tapped :opening Y lubricant into the ytormed, outwardly tend through open-ings 'with a central opening 33 posed roller bearings 24 are ournaled theretending annular wall`28and the lower portion of said wall is curved to rotatively en'- gage the retaining member 12. oitheupper l bearing. The top Ycap member 27 is also of the upper' flared Iportion of the member 9.,.with an annu-lar wall 29A depending from its undersurface. Lodged tightly against the outer surface of .said wall l29 is the upper end portion of a cylindrical sheet metal housing 30', and the lower en d portion 'of the latter rests on the annular flange 21 of the lower cupped member 13 adjacent` the outer surface of said .cupped inem- Vber'. AThe' top cap member 27 and the lower cupped member 13 are-joined by a plurality of elongated bolts 31. The lower end portions vof said bolts while the upper end portions of thebol-ts eX- in the member r27 and upper end portionsv carry Vwhen tightened clamp the their `projecting nuts' 32, which, members 13 and anda-lso cause the secured in position. l The top cap member 27 is JL'urther-formed Jforthe insertion of the lower end portion of a l*lagsta 34, and comparatively close to the. opening 33 is a 35 normally closed'by a threaded' plug .36, for the introduction of l bearing. VThe inner end y rtionsof -'upper rotative trame arms37are bolted Ato the :outer periphery of the top cap member 27. f f

It? will therefore be seen that in the improved bearing upper and lower bearing VVmembers are provided with the upper bearing member turning within .and on the hanged portion '9 of the member 7 and the housing 30 toI be tightly 'lower bearingl member turning about an'in- 1 termediate portion lof the support 6. The anti-friction members in both of the bearing members cause the-same to turn very easily. 'The .top cap member 27 is rotatively mounted on :the upper bearing member and it is oined through the means previously described to the lower rotative member 13, with'the result that the membersl3'and 27 andi-all frame parts carried thereby, turn :as a unit without any binding tendency because of' the upper `and lower bearing members.

' From the structure described it is evident that the rdevicermay be assembled and mountber'l27 isV iormed with anl intermediate downwardly andinwardly e'X- are threaded into threaded openingsiu the flange 21 of the memberV 13,

27 with respect to keach other ed on a support very easily, and the parts are securely maintained in their proper positions. To lubricate the bearing parts, the plug 36 is first removed and then lubricant is introduced through the opening 35 to completely till the upper cupped member 7 which acts as an'upperreservoir. After the member 7 has been filled the introduction of the v lubricant is continued and it drips over the upper edge of the member 9 and downy into the lower cupped member 13, and this is continued until the last-mentioned member is -filled. Both bearing members will be adequately supplied with lubricanty and the supply will last anindefinite period. The housing 301 prevents splashing when thelubricant is cir-ippingV into the Yand it acts as alubricant lower vcupped member, retainer, and it also prevents -Y the entrance of weather into the bear-ing parts.

From the foregoing description it will be seen that the' improved bearing isboth sim- ',ple andlfnovehand is well adapted for the purposesf described.- v '-'What-Iwclaim as my invention is:

1. 'A' bearing, comprising a vertical tubular support, a cupped member mounted on the upper end thereof and extending thereinto, an annular bearing mounted within the of said cupped member, a" cap rotatively mounted on said bearing, a

upper end portion bearing member rotatively surrounding .an intermediate portion of the support, and conrrectln'gV members between vthe cap and the last-mentioned member.

` 2. A bearing, comprising a `vertical tubular support, a cupped member mounted on the upper `end thereof and extending thereinto, Van annular bearing mounted within the upper end portion of said cupped member, a-"

cap rotatively mounted on `said bearing, a cupped bearing member rotatively surrounding Yan intermediateV portion of the support, connectingvmembers between the cap and the last-mentioned tacle/non-rotatively mounted with respect to the support and surrounding a'portion of the last-mentioned bearing member and supportingly engaging the lower portion thereof.

3. A bearing, comprising a vertical tubu` lar support, a cupped member mounted on the upper end thereof and extending thereinto, an annular bearing mounted within the upper'end portion. of said cupped member,

a cap rotatively mounted on :said bearing, aF

cupped bearing member rotatively surroundying an intermediate portion of the support,

a housing surrounding the support and eX- tending between the cap and the lowerbeara receptacle non-rotatively mounted with rebearing member, and a recep-f ing member, adjustable clamping members' spect to the support and surrounding a portion of the-last-menti'oned.bearing member and supportingly engaging the lower portion thereof, and a clampingmember surrounding the support below the receptacle and engaging the same 4. A bearing, comprising a vertical support, a cupped bearing member mounted on an end portion thereof and extending thereinto, a cap rotatively mounted on said bearing, a. cupped bearing member rotatively surrounding an intermedia-te portion of the support, connecting members between the cap and the last-mentioned bearing member, a receptacle non-rotatively mounted with respect to the support and surrounding a portion of the last-mentioned bearing member and supportingly engaging the lower portion thereof, a clamping member surrounding the support below the receptacle and adjustable with respect thereto and having a wedging engagement therewith, and an annular yielding member engaging the support and wedgingly clamped between adjacent portions of the clamping member and the receptacle.

5. In a bearing construction, a support, an elongated rotative member surrounding l a portion of the support, anti-friction devices interposed between upper and lower portions of the rotative member and the support, the lowerportion of said rotative member being formed as a receptacle for lubricant, a nonrotative cupped member mounted onthe support below the receptacle portion of the rotative member and engaging the same, an annular clamping member surrounding the support immediately below said cupped member, an annular wedging member surroundl ing the support immediately below said clamping member and adjustably connected to the latter, and a yielding annular member surrounding the support between adjacent portions of the cupped member, the clamping member and the wedging member and binding the parts in clamped position and forming a leakage.

In testimony whereof, I aix my signature.

WILLIAM MITCHELL.

gasket to prevent lubricant 

